JPS5946067B2 - Magnetic tape winding device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a magnetic tape winding device.

Conventional 1/2-inch wide video cassettes (the so-called Beta method) were made by winding magnetic tape around an exposed reel hub and then installing it into the case, but this method was mostly manual and also affected the work environment. In some cases, this may be a factor in deteriorating performance.

The present invention has been made in view of the above circumstances, and provides a device that automatically winds a predetermined length of magnetic tape into a video cassette case into which an automatically supplied leader tape of a predetermined length is set and ejects it.

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a magnetic tape supply master reel on which a magnetic tape 2 such as a video tape is wound, and 3|3, . . . are from this master reel 1. The unwound magnetic tape 2 is connected to the tape joint B.
4 is a measuring roller; 5 is a video cassette case with a built-in pair of hubs 5a, 5a to which both ends of a leader tape 6 of a certain length are fixed; 7 is a video cassette case; It is a frame-shaped holder which is a main component of the rotor part L for holding this force setting case 5, and is moved back and forth (in the direction perpendicular to the page) by an air cylinder 8.
The forward position shown by the dotted line in FIG. 3 is the housing position of the force setting case 5, and the backward position shown by the solid line is the magnetic tape bonding preparation position.

When the force setting case 5 held by the holder 7 moves from the storage position to the magnetic tape bonding preparation position, the front cover 5b is unlocked by the lock release pin 9, and the release lever 10
The front lid 5b can be opened by this. Note that the opening/closing structure of the front cover of the force setting case 5 is standardized and well known, so a detailed explanation will be omitted. Reference numerals 12 and 12 indicate the position of the force setting case 5 provided on the holder 7 and fed by a feeder part F to be described later on the holder 7.
This is a stopper for specifying the

Drive shafts 11a and 11b for hub rotation driven by motors 11a' and 11b' protrude from the holder 7, and are coupled to the hubs 5a and 5a when the housed force setting case 5 is moved to the welding preparation position. I'm starting to do that. The drive shafts 11a and 11b rotate counterclockwise and clockwise, respectively. Reference numeral 13 denotes a guide roller arm having a guide roller 13a at its tip, and as shown in detail in FIGS. The swing lever 16 swings a predetermined amount by a drive cylinder 16', thereby swinging the integrated guide roller arm 13 left and right.

At the right end of the guide roller arm 13, the guide roller 13a is in the holder 7 and is ready to pull out the leader tape 6, and at the left end, the guide roller 13a is for pulling out the leader tape 6 by a predetermined amount. Further, the guide roller arm 13 is connected to the guide roller 1 by a cylinder 15 at the left end.
3a can swing downward. Reference numeral 17 denotes a curved through hole formed in the base plate 14, through which the guide roller arm 13 is guided.

A fixed tape pedestal 18 and a movable tape pedestal 19 adjacent to the fixed tape pedestal 18 are disposed below the swing locus of the guide roller 13a. As shown in detail in FIGS. 5A and 5B, the fixed tape holder 18 is provided with a guide groove 20, while the movable tape holder 19 is provided with two guide grooves 21 and 22.
It is reciprocated by a cylinder 19a, so that one of the guide grooves 21, 22 selectively abuts against the guide groove 20. Each of the guide grooves 20, 21,
There are many vacuum suction holes 23, 23,... on the bottom of 22.
... is open, and a vacuum is applied as necessary. Reference numeral 24 denotes a cutter which can be freely extended and retracted from the base plate 14 between the fixed tape holder 18 and the movable tape holder 19 by means of a cylinder (not shown).

Reference numeral 25 denotes a push pin for biasing a part of the leader tape 6 pulled out from the force setting case 5 from the upper surface of the guide groove 20 and one of the guide grooves 21 and 22 that abuts against it, and is shown in detail in FIG. As shown, it is moved by a cylinder 26.

27 is a supply reel on which a bonding tape 28 is wound, and the bonding tape 28 unwound from this reel 27 is wound onto a take-up reel 30 via guide rollers 29, 29, . . . It is starting to be taken.

The fixed length feeding of the joining tape 28 is carried out by the pressure rotation of the guide roller 29 and the pinch roller 31. 32 cooperates with the female blade 33 to cut the joining tape 28 to a specified size (
It is a male blade for cutting a portion of the bonding tape 28 (area) and crimping a portion of the cut joining tape 28 onto the abutting portion of the magnetic tape 2 and the leader tape 6, and is moved up and down by a cylinder 34.

35 is a capstan roller; 36 is a pinch roller that cooperates with the capstan roller 34 to feed the tape and to push out air bubbles in the bonding tape 28 adhered to the bonded portion of the magnetic tape 2 and the leader tape 6; The capstan roller 3 is movable in the front and back direction, and
It is freely detachable from 5.

37 is a motor for driving the capstan roller 35.

The tape cassette feeder 1F is shown in detail in FIG.

That is, in the figure, numeral 38 denotes an obliquely arranged magazine in which a large number of force setting cases 5 are stacked and stored diagonally, and 39 denotes the lower edge of the lowest position 5' of the force setting cases 5 stored in this magazine 38. It is a rotatable stopper that locks, and is rotated by the air cylinder 40 to release the lock. Reference numeral 41 denotes a push roller that presses the earth side end of the force setting case 5' at the lowest position to supply the force setting case 5' and engages with the end face of successive cassette cases to prevent it from falling. An arm having 41a at the tip, air cylinder 41b
It rotates by.

Reference numeral 42 denotes a guide tube for guiding the force setting case 5 that has been supplied and fallen by this push roller 41a, and 43 is a storage case provided at the lower part of this guide tube 42.
A receiving arm 44 for the force setting case 5 is rotatably provided at 3', and this arm 44 is rotated by an air cylinder 45, so that the force setting case 5 housed in the housing case 43 is discharged as described later. It is now being sent to Department E.

Reference numeral 46 denotes a slider which can reciprocate from the position of the force setting case storage case 43 to the position of the loader section L by guide shafts 47a and 47b.
A push plate 48 is attached to the push plate 48, and a finger 49 for holding the force setting case 5 in cooperation with the slider 46 is attached to the push plate 48.
is operated by the air cylinder 50 when the slider 46 moves backward.

The slider 46 is reciprocated by an air cylinder 51. 52 is a bracket for commonly fixing two ends of the air cylinder 51 and one end of the guide shafts 47a, 47b; 53, 54 are fixing the other ends of the air cylinder 51 and the card shafts 47a, 47b, respectively. This is a bracket for

Next, the discharge section E attached to the feeder 1F will be explained in detail as follows.

A shutter 55 is provided so that its upper end is connected to the bottom opening 43' of the storage case 43.
An opening 56 through which the force setting case 5 is discharged is provided in the lower end horizontal portion 55a, and rotatable receiving plates 57 that support both side edges of the force setting case 5 are provided on both sides of the opening 56.
A, 57b are provided, and the receiving plates 57a, 57b are rotated by an air cylinder 58, so that they form a so-called double door opening, and the force setting case 5, which is located on the horizontal part 55a of the shooter, is dropped through the opening 56. It's getting old.

Note that 59 is a housing. Note that the operation timing of each component will be omitted in the following operation description.

Therefore, parts such as switches, which are main parts that define each timing, are not shown. Although the configuration of the apparatus of the present invention is as described in Q above, the mode of winding a videotape using this apparatus will be explained below.

First, a large number of force setting cases 5 are stored in the magazine 38. Then, when the stopper 39 is rotated by the air cylinder 40, the force setting case 5' at the lowest position of the magazine 38 is released from the lock, and in this state, the air cylinder 4
1b is driven, the arm 41 rotates, the push roller 41a presses the upper end of the force setting case 5'', and the force setting case 5 is pushed through the guide tube 42 in a so-called Daruma-otoshi manner.
' is dropped into the storage case 43. At this time, the push roller 41a engages with the end faces of successive cassette cases to prevent them from falling. When the force setting case 5' is housed in the housing case 43, the stopper 39 returns to its original position.
The push roller 41a then returns and the successive tape cassette ridges slide off ready for the next drop. Thereafter, the force setting case 5 (hereinafter referred to as this reference numeral) that has fallen into the accommodation case 43 is received by the receiving arm 44, and in this state the slider 46 moves and is accommodated in the holder 7 by the push plate 48. In this case, the tape cassette 5 is connected to the stopper 12.
, 12, it is fixed at a prescribed position on the holder 7. Subsequently, the holder 7 is retracted by the air cylinder 8 and set in a fixed position. At this time, the front cover 5b of the holder 7 is unlocked by the lock release pin 9, and the front cover 5b is opened by the release lever 10, while the drive shafts 11a, 11b are connected to the hubs 5a, 5a of the holder 7. On the other hand, holder 7
The guide roller 13a is set inside.
The next signal (auto or manual) drives the cylinder 17 to swing the swing lever 16 and guide roller arm 1.
3 to the left. As a result, the guide roller 13a hooks the leader tape 6 inside the force setting case 5 and pulls it out. Subsequently, when the guide roller arm 13 reaches the right end, the cylinder 13' is driven and the guide roller 13a is moved.
is moved downward, and the leader tape 6 is also moved downward and brought to the guide groove 20 of the fixed tape holder 18 and the guide groove 21 of the movable tape holder 19, which abuts against the guide groove 20 of the fixed tape holder 18. At this time, a vacuum is applied to the suction hole 23 and the leader tape 6 is suctioned and fixed. The guide roller arm 13 is then returned to its old position. Next, when the leader tape 6 is fixed, the cutter 24 advances to cut the leader tape 6, and then retreats to the old position. Next, the movable tape holder 19 is moved forward by the cylinder 19a so that its guide groove 22 butts against the guide groove 20 of the fixed tape holder 18. The end of the magnetic tape 2 unwound from the tape is set,
Therefore, the end of the magnetic tape 2 and the cut end of the leader tape 6 set in the guide groove 20 are butted against each other. Next, the push-out pin 25 is moved forward by the cylinder 26, and the leader tape 6 is biased from above the guide groove 20 and the guide groove 22 that abuts against it. When the joining space is thus formed and the preparation for joining is completed, the male blade 32 is lowered by the cylinder 34 and cooperates with the female blade 33 to cut the joining tape 28 to a specified size. The piece is pressed against the abutted portion of the end of the magnetic tape 2 and the cut end of the leader tape 6, thereby joining the magnetic tape 2 and the leader tape 6. In this case, the cut and joined tape pieces are pressed onto the back side (anti-magnetic side) of the magnetic tape 2. This is standardized. Male blade 32 after joining
returns to its original state, and on the other hand, the pinch roller 31 presses the joining tape 28 against the guide roller 29, rotates and feeds it a certain distance, and prepares for the next joining. After that, the suction holes 2 of the guide grooves 20 and 22
The vacuum supply acting on 3 is stopped. Next, when the leader tape 6 and the magnetic tape 2 are joined, the pinch roller 36
When the leader tape 6 moves forward and is further joined to the capstan roller 35, the leader tape 6 is moved by these rollers 36, 35.
is clamped, and in this state, when the capstan roller 35 is rotated at a constant rate by the motor 37, the leader tape 6 and the magnetic tape 2 bonded thereto run while being pressed together.
At this time, air bubbles within the joining tape 28 pieces are pushed out.

The pinch roller 36 then returns to its original position. The magnetic tape 2 is wound around the hub 5a by a preset length by the rotation of the drive shaft 11a. In this case, the amount of winding is detected by the measuring roller 4, and the signal is transmitted to the control system of the drive shaft 11a. When the magnetic tape 2 of a specified length is wound around the tube 5a, vacuum is again applied to the suction holes 23 of the guide grooves 20 and 22, and the magnetic tape 2 is suctioned. Next, the cutter 24 moves forward and cuts the magnetic tape 2. Katsuta 124 then returns. After that, the movable tape holder 19 moves back and its guide groove 21 butts against the guide groove 20 of the fixed tape holder 18. As a result, the cut end of the magnetic tape 2 wound around the tape 5a and the guide groove 21 are brought into contact with each other. The end portions of the leader tape 6 set earlier are butted against each other, and then the abutted portions are joined by the cut pieces of the joining tape 28 in the same manner as described above. When the male blade 32 rises, the push-out pin 25 retreats and returns to its original position. Thereafter, air bubbles are removed from the bonded area using a capstan roller 35 and a pinch roller 36. At this time, the drive shaft 11a also rotates and the hub 5a winds up the magnetic tape 2. Next, drive shaft 1
1b rotates clockwise, and the hub 5a winds the magnetic tape 2 for a certain length.

At this time, the capstan roller 35 and the pinch roller 36 work to move the magnetic tape 2 from right to left. After that, the guide roller 13a moves downward again to align the magnetic tape 2 with the guide grooves 20 and 21, and the pinch roller 36
In this state, the pinch roller 36 is returned to its original position. Subsequently, the guide roller 13a moves upward, moves to the right via the guide roller arm 13, and returns to its original position. At the same time, the drive shaft 11b rotates clockwise, and the force setting case 5
The leader tape 6 and magnetic tape 2 coming out from the magnetic tape 2 are stored in the force setting case 5. Next, the holder 7 is moved forward by the air cylinder 8, and at this time, the front cover 5b of the force setting case 5 is closed and locked, and the force setting case 5 returns to the final forward end of the holder 7. Next, the tape cassette 5 in which the magnetic tape 2 has been wound is moved forward by the air cylinder 50, and the fingers 49 and the slider 46 cooperate to hold the tape cassette 5, and in this state, the air cylinder 50 is held again. When the slider 46 is activated and moves to the right (backward movement), it returns to the inside of the storage case 43. Next, when returning to the storage case 43, the receiving arm 44 is rotated by the air cylinder 45 in response to the next signal instruction to open the opening 43'.
The tape cassette 5 falls onto the shooter 55 and slides through it until it reaches the horizontal portion 555a. Here, if the tape cassette 5 is an acceptable product, the receiving plates 57a and 57b are rotated by the air cylinder 58 to double-open the tape cassette 5, and the tape cassette 5 transfers the articles to the sequential process (accumulation section) through the opening 56. A conveyor (not shown) is dropped onto the soil. It goes without saying that the receiving arm 44 and the receiving plates 57a, 57b return to their old positions after appropriate operations. By repeating the above cycle, force set case 5 is set.
The magnetic tape is wound in sequence.

The force setting case 5 in which a predetermined length of magnetic tape 2 is wound in this manner can be used as is as an ordinary 1/2 inch wide video cassette. As described above, according to the device of the present invention, it is possible to automatically wind a magnetic tape of a predetermined length around a hub built in a pre-set case that is automatically supplied with force, thereby completely eliminating the need for manpower. In addition to being able to significantly reduce costs, magnetic tape does not deteriorate in performance because it is rarely touched or exposed to the outside world, and it is compact and ideal for manufacturing video cassette halves. effective.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of the device of the present invention, Fig. 2 is a schematic front view thereof, Fig. 3 is a sectional view of the load portion thereof, and Figs. Vertical side view and arrow view explanatory view showing the roller and its peripheral structure, No. 5
Figures A and b are a plan view and an explanatory diagram showing the structure of the tape holder, respectively, Figure 6 is a plane view of the push-out pin, and Figure 7 is a feeder which is a component of the device of the present invention. and a partially cutaway side view of the discharge section, and FIGS. 8A and 8B are a plan view of the discharge section and an explanatory diagram thereof in the direction of arrows. 1... Reel, 2... Magnetic tape, 3
...Guide roller, 4...Measuring roller, 5, 5'', 5'...Force setting case, 5a.
...Hub, 5b...Front lid, 6...
・Leader tape, 7...Holder 8...
...Air cylinder, 9...Lock release pin,
10...Release lever 11a, 11b...
... Drive shaft, 12 ... Stopper, 13 ...
...Guide roller arm, 13'...Cylinder, 13a...Guide roller, 14...
Base plate, 15... Pivot support, 16...
・・Swing lever 16′・・・・Drive cylinder
17...Through hole, 18...Fixed tape holder, 19...Movable tape holder, 19a...
... Cylinder, 20, 21, 22 ... Guide groove, 23 ... Suction hole, 24 ... Cutter 1, 25 ... Push-out pin, 26 ... ...Cylinder, 27...Reel, 28...Joining tape, 29...Guide roller, 30...
... Take-up reel, 31 ... Pinch roller, 3
2...Male type blade, 33...Female type blade,
34...Cylinder, 35...Capstan roller, 36...Pinch roller, 38...
...Magazine, 39...Stopper, 40.
...Air cylinder, 41...Arm, 4
1a...Push roller, 41b...Air cylinder, 42...Guide tube, 43...
・Accommodation case, 43″... Opening, 44...
...Receiving arm, 45... Air cylinder, 46
......Slider, 47a, 47b...Guide shaft, 48...Press plate, 49...
...Finger 1, 50, 51...Air cylinder, 55...Shooter 1, 55a...Lower end horizontal part, 56...Opening, 57a, 57b・・・
...Brace plate, 58...Air cylinder.

Claims (1)

[Claims] 1 Built-in guide means for guiding the magnetic tape wound on the master reel to the tape cutting and joining position, and a pair of hubs, each of which holds a video cassette case with both ends of a certain length of leader tape fixed to each hub. a holder that is movable back and forth; a cassette front lid closing/opening means that closes and opens a front lid of the video cassette case in accordance with the back and forth movement of the holder; a drive shaft for winding up the magnetic tape that is coupled to the hub when the video cassette case is opened; a leader tape pull-out means for pulling out the leader tape from an open lid portion in the video cassette case; and a cutting means for cutting the leader tape and the magnetic tape. a joining means for joining the cut end of the leader tape and the cut end of the magnetic tape with a joining tape; and tape extrusion for deflecting a part of the leader tape from the space required for joining when joining both tapes by the joining means. A pin, a magazine for stacking and storing a large number of tape cassettes diagonally, a stopper for dropping the tape cassettes one by one into this magazine, an arm with a push roller at the tip, and storing the fallen tape cassettes. a storage case having an opening at the bottom and a receiving arm in the opening, and a push plate that reciprocates between the storage case and the holder to transfer the tape cassette in the storage case to the holder. a slider having a slider; a finger attached to the slider that cooperates with the slider to clamp a tape cassette containing a magnetic tape when the slider moves backward; This magnetic tape winding device comprises a shooter that receives and slides down a tape cassette after winding the tape, and a pair of receiving plates that can be opened double-sided and provided on both sides of an opening formed in the horizontal part of the lower end of the shooter.